Homework Help: calculus

Posted by amalia on Thursday, March 15, 2012 at 7:00am.

Find the critical point(s) of the function.
Then use the second derivative test to classify the nature of each point, if possible.
Finally, determine the relative extrema of the function.
f(x,y)=3x^2 - 3xy + 3y^2 +5

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